| /* |
| * Copyright 2009 VMware, Inc. |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * on the rights to use, copy, modify, merge, publish, distribute, sub |
| * license, and/or sell copies of the Software, and to permit persons to whom |
| * the Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| * VMWARE AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, |
| * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| * USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #include "u_indices.h" |
| #include "u_indices_priv.h" |
| |
| static void translate_memcpy_ushort( const void *in, |
| unsigned nr, |
| void *out ) |
| { |
| memcpy(out, in, nr*sizeof(short)); |
| } |
| |
| static void translate_memcpy_uint( const void *in, |
| unsigned nr, |
| void *out ) |
| { |
| memcpy(out, in, nr*sizeof(int)); |
| } |
| |
| |
| int u_index_translator( unsigned hw_mask, |
| unsigned prim, |
| unsigned in_index_size, |
| unsigned nr, |
| unsigned in_pv, |
| unsigned out_pv, |
| unsigned *out_prim, |
| unsigned *out_index_size, |
| unsigned *out_nr, |
| u_translate_func *out_translate ) |
| { |
| unsigned in_idx; |
| unsigned out_idx; |
| int ret = U_TRANSLATE_NORMAL; |
| |
| u_index_init(); |
| |
| in_idx = in_size_idx(in_index_size); |
| *out_index_size = (in_index_size == 4) ? 4 : 2; |
| out_idx = out_size_idx(*out_index_size); |
| |
| if ((hw_mask & (1<<prim)) && |
| in_index_size == *out_index_size && |
| in_pv == out_pv) |
| { |
| if (in_index_size == 4) |
| *out_translate = translate_memcpy_uint; |
| else |
| *out_translate = translate_memcpy_ushort; |
| |
| *out_prim = prim; |
| *out_nr = nr; |
| |
| return U_TRANSLATE_MEMCPY; |
| } |
| else { |
| switch (prim) { |
| case PIPE_PRIM_POINTS: |
| *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_POINTS; |
| *out_nr = nr; |
| break; |
| |
| case PIPE_PRIM_LINES: |
| *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_LINES; |
| *out_nr = nr; |
| break; |
| |
| case PIPE_PRIM_LINE_STRIP: |
| *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_LINES; |
| *out_nr = (nr - 1) * 2; |
| break; |
| |
| case PIPE_PRIM_LINE_LOOP: |
| *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_LINES; |
| *out_nr = nr * 2; |
| break; |
| |
| case PIPE_PRIM_TRIANGLES: |
| *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_TRIANGLES; |
| *out_nr = nr; |
| break; |
| |
| case PIPE_PRIM_TRIANGLE_STRIP: |
| *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_TRIANGLES; |
| *out_nr = (nr - 2) * 3; |
| break; |
| |
| case PIPE_PRIM_TRIANGLE_FAN: |
| *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_TRIANGLES; |
| *out_nr = (nr - 2) * 3; |
| break; |
| |
| case PIPE_PRIM_QUADS: |
| *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_TRIANGLES; |
| *out_nr = (nr / 4) * 6; |
| break; |
| |
| case PIPE_PRIM_QUAD_STRIP: |
| *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_TRIANGLES; |
| *out_nr = (nr - 2) * 3; |
| break; |
| |
| case PIPE_PRIM_POLYGON: |
| *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_TRIANGLES; |
| *out_nr = (nr - 2) * 3; |
| break; |
| |
| default: |
| assert(0); |
| *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_POINTS; |
| *out_nr = nr; |
| return U_TRANSLATE_ERROR; |
| } |
| } |
| |
| return ret; |
| } |
| |
| |
| |
| |
| |
| int u_index_generator( unsigned hw_mask, |
| unsigned prim, |
| unsigned start, |
| unsigned nr, |
| unsigned in_pv, |
| unsigned out_pv, |
| unsigned *out_prim, |
| unsigned *out_index_size, |
| unsigned *out_nr, |
| u_generate_func *out_generate ) |
| |
| { |
| unsigned out_idx; |
| |
| u_index_init(); |
| |
| *out_index_size = ((start + nr) > 0xfffe) ? 4 : 2; |
| out_idx = out_size_idx(*out_index_size); |
| |
| if ((hw_mask & (1<<prim)) && |
| (in_pv == out_pv)) { |
| |
| *out_generate = generate[out_idx][in_pv][out_pv][PIPE_PRIM_POINTS]; |
| *out_prim = prim; |
| *out_nr = nr; |
| return U_GENERATE_LINEAR; |
| } |
| else { |
| switch (prim) { |
| case PIPE_PRIM_POINTS: |
| *out_generate = generate[out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_POINTS; |
| *out_nr = nr; |
| return U_GENERATE_REUSABLE; |
| |
| case PIPE_PRIM_LINES: |
| *out_generate = generate[out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_LINES; |
| *out_nr = nr; |
| return U_GENERATE_REUSABLE; |
| |
| case PIPE_PRIM_LINE_STRIP: |
| *out_generate = generate[out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_LINES; |
| *out_nr = (nr - 1) * 2; |
| return U_GENERATE_REUSABLE; |
| |
| case PIPE_PRIM_LINE_LOOP: |
| *out_generate = generate[out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_LINES; |
| *out_nr = nr * 2; |
| return U_GENERATE_ONE_OFF; |
| |
| case PIPE_PRIM_TRIANGLES: |
| *out_generate = generate[out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_TRIANGLES; |
| *out_nr = nr; |
| return U_GENERATE_REUSABLE; |
| |
| case PIPE_PRIM_TRIANGLE_STRIP: |
| *out_generate = generate[out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_TRIANGLES; |
| *out_nr = (nr - 2) * 3; |
| return U_GENERATE_REUSABLE; |
| |
| case PIPE_PRIM_TRIANGLE_FAN: |
| *out_generate = generate[out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_TRIANGLES; |
| *out_nr = (nr - 2) * 3; |
| return U_GENERATE_REUSABLE; |
| |
| case PIPE_PRIM_QUADS: |
| *out_generate = generate[out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_TRIANGLES; |
| *out_nr = (nr / 4) * 6; |
| return U_GENERATE_REUSABLE; |
| |
| case PIPE_PRIM_QUAD_STRIP: |
| *out_generate = generate[out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_TRIANGLES; |
| *out_nr = (nr - 2) * 3; |
| return U_GENERATE_REUSABLE; |
| |
| case PIPE_PRIM_POLYGON: |
| *out_generate = generate[out_idx][in_pv][out_pv][prim]; |
| *out_prim = PIPE_PRIM_TRIANGLES; |
| *out_nr = (nr - 2) * 3; |
| return U_GENERATE_REUSABLE; |
| |
| default: |
| assert(0); |
| *out_generate = generate[out_idx][in_pv][out_pv][PIPE_PRIM_POINTS]; |
| *out_prim = PIPE_PRIM_POINTS; |
| *out_nr = nr; |
| return U_TRANSLATE_ERROR; |
| } |
| } |
| } |
